Top-heating means for a combination stove



Oct. 8, 1929. F. A. GERCICH TOP HEATING MEANS FOR A COMBINATION STOVEFiled Aug. 2, 1926 ATTORNEY Patented Oct. 8 1929 UNITED STATES PATENTOFFICE FREDERICK A. GERGICH, OF OAKLAND, CALIFORNIA, ASSIGNOR TOHAMMER-BRAY COMPANY, OF OAKLAND, CALIFORNIA, A CORPORATION OF CALIFORNIATOP-HEATING MEANS FOR A COMBINATION STOVE Application filed August 2,1926.

My invention relates to means for heating a griddle by gas when thegriddle is mounted over a solid fuel fire box.

An object of the invention is to provide means of the characterdescribed which may be readily and inconspicuously installed as apermanent fixture in combination stoves of usual structure.

Another object of the invention is to pro- 19 vide means of thecharacter described which may also function as a kindler for the firebox.

The invention possesses other objects and features of advantage, some ofwhich, with the foregoing, will be set forth in the followingdescription of the preferred form of my invention which is illustratedin the drawings accompanying and forming part of the specification. Itis to be understood, however, that I do not limit myself to the showingmade by the said drawings and description, as I may adopt variations ofthe preferred form with in the scope of my invention as set forth in theclaims.

Referring to said drawings,

Figure 1 is a fragmentary front view of a stove provided with the deviceof my invention.

Figure 2 is a fragmentary sectional view taken on the line 2-2 in Figure1.

Figure 3 is a fragmentary sectional view taken on the line 33 in Figure2.

Figure 4 is a fragmentary plan view of the stove, portions thereof beingbroken away.

As herewith particularly illustrated, the device of my invention isincorporated with a gas stove 6 having a cooking top 7 beneath which isdisposed a fire box 8 and a top gas burner chamber 9. The top portion 9above the fire box, it will be noted, is provided with a perforation 11in which any suitable closure member is arranged to be positioned andseat ed. As here shown, a griddle plate 12 is removably positioned inthe top perforation, it being obvious that other closures, such aslidded plates or the like, might be substituted therefor. The fire box 8and chamber 9 are preferably contiguous, having a common wall 18 betweenthem. It will be notedthat the chamber 9 is comparatively shallow and isprovided with a bottom plate member 14on Serial No. 126,651.

Kindler burners 21 and 22 are provided, which burners are preferablyindependently operable and are arranged to project gaseous fuelhorizontally into different portions of the fire box. -The respectivekindlers comprise kindler pipes 23 and 23 respectively,

which are provided with jets 24: from which the fuel is arranged to beprojected, the pipes being preferably positioned outwardly of the firebox. As here shown, the kindler pipes are positioned adjacent the wall13, and in vertically superposed relation. The wall 13, it will now benoted, is perforated opposite the jets 241 to receive the latter,whereby gaseous fuel may be delivered from the kindler pipes to the firebox in a horizontal plane. By positioning the upper kindler pipe in theburner chamber 9 and the lower kindler pipe in the space 18, delivery offuel from the pipes is arranged to be respectively effected in the upperportion of the solid fuel spaceof the fire box from the upper burner 22and above and adjacent the grate 17 from the lower burner 21. In thismanner, gaseous fuel is arranged to be independently delivered at twodifferent levels in the solid fuel portion of the fire box, so that theignition and combustion of such fuel by the use of the kindlers isinsured. I

The upper burner 22, in addition to functioning as a kindler, isarranged to effect a heating of the top closure of the fire box, if andwhen desired, sufficient gas fuel being allowed to escape therefrom toinsure a sufliciently high heating effect. The horizontal direction ofthe fuel discharge therefrom has been found to produce a more uniformheat ing of the closure and to insure a complete fuel combustion, and istherefore much preferred, such direction also being most efficient whenthe burner is used as a kindler. In this manner, the griddle plate 12,which as here shown comprises the fire box closure, may be heated by thecombustion of solid fuel or gaseous fuel, or of both of said fuelssimultaneously as may be desired, and the cooking space over the top gasburners of the stove is free for normal use thereof.

The rarious top gas burners, it will now be noted, are arranged to besupplied with gas from a manifold 26 extending across the stove in frontof the chamber 9, such delivery of fuel being effected through a seriesof aligned cocks 27 positioned in the delivering pipes between themanifold and the different top gas-burners. The kindler burners 21 and22are also arranged to be supplied from the manifold 26, the connectingmeans therefor respectively including pipes 28 and 29 and cocks 31 and32, the latter preferably being similar to the cocks 27 and positionedin alignment therewith, it being noted that the best appearance of therow ofcocks is effected if and when such cocks are evenly spaced as ishere shown. In this manner, the control of the kindler cocks is effectedat the front of the stove, at a convenient height, and the various cocksare all located at one place on the stove. The pipe 28 extends directlyforwardly from its burner to a point without the space 18 and thenupwardly to its connection with the cock. As the pipe 23 in the presentembodiment is horizontally aligned with the manifold, the pipe 29 merelyextends forwardly from its burner to a connection with the cock 32, asuitable bend being however formed in the pipe 29 within the chambersince the cock 32 is disposed inwardly of the cock 31.

Since the kindler pipes and their connections extend into the chamber 9and space 13 they would be somewhat visible from the front of the stove,while the drawer 19 must be spaced'from the wall 13 to thereby provide agap between its front and the wall 13. Means are accordingly providedfor closing such gap, such means comprising a casing member 33 extendingfrom the front edge of the wall 13 to the side line of the drawer, itbeing noted that the kindler connection pipes extend through suchcasing. In this manner, the space 18 may be completely closed, andminimum portions of the kindler assemblies are visible.

The space defined behind the casing 33 is also here shown utilized as aplace of concealment for the manifold supply pipe 3%, which pipe extendsforwardly through such space and the casing 33 below the kindler burnersand thence upwardly to a connection with the manifold 26.

The plate 13, as shown in Figure 3, is formed with a depression 35 whichextends into the fire box preferably below the grate and in which thesupply pipe is arranged to seat. With this arrangement the pipe mayextend through the casing in close proximity to the doors of the the boxso that the width of the casing may be reduced and the efiective widthof the warming closet 18 increased accordingly.

leans ar provided for protecting the kindler jets from the directapplication of fire thereto from within the fire box. As here shown,such means comprises the provision of a depending plate 36 preferablymounted on and in front of thestove lining member 3? opposite the jetsof the lower burner, such lining member and plate being perforatedopposite the jets. The lining is also perforated opposite the jets ofthe upper burner, the perforations thereof being provided with annularflanges 33 extending outwardly thereof. in this mann r, the pr r ibleburning of the jets is prevented, the lini members only being requiredto withstand the direct application of heat thereto.

I claim:

1. in a stove provided with a cooking top, a. fire box and a top burnerchamber unving said top, a griddle providing a top ire for said firebox, a kindlcr burner ar- .iged to project gaseous fuel horizontallyinto said fire box adjacent the top thereof whereby the combustion ofsaid projected fuel may ignite any solid fuel in the box and rd griddleto a cooking temperature.

ply cocks operatively disposed between the different burners and saidmanifold.

2. In a stove, a fire box, a top gas burner compartment at one side ofsaid fire box, a warming compartment under said burner compartment andcontiguous with said fire box, a vertical partition separating said boxand lower compartment and having a transversely extending depressionprojecting into said box and defining a groove in said warmingcompartment, a burner supply manifold extending horizontally across thefront of said burner compartment, a casing at the front of said lowercompartment, a gas supply pipe extending through said casing and thelower compartment from the back of the stove to the front thereof andlying in said groove, and a vertical extension of said supply pipepositioned in front of said casing and connecting said manifold andsupply pipe.

3. In astove provided with a cookin top, atop burner chamber and afire-box for solid fuel separated by a wall and underlying said top eacharranged for the independent heating of the associated overlying cookingtop portions, top gas burners in said chamber, a solid fuel supportinggrate in said fire-box, and a burner extending along said wall arrangedto project gaseous fuel transversely across said fire-box from a pointadjacent said wall in the upper portion of the space above said grate.

l. In a stove provided with a cooking top, a top-gas burner chamber anda fire-box for solid fuel separated by a Wall and underlying said topeach arranged for the independent heating of the associated overlyingcooking top portions, top-gas burners in said chamber, a solid fuelsupporting grate in said fire-box, a burner disposed horizontally alongand adjacent the top of said wall outside of said fire-box, said lastburners arranged to project gaseous fuel through said Wall and acrosssaid fire-box,

5. In a stove provided with a cooking top, a top-gas burner chamber anda fire-box for solid fuel separated by a wall and underlying said topeach arranged for the independent heating of the associated overlyingcooking v top portions, top-gas burners in said chamher, an upper and alower burner disposed along said wall arranged to project gaseous fuelacross said fire-box, a burner supply manifold extending along a side ofsaid chamher, and rectilinearly related supply cocksfor said top gasburners operatively disposed between said manifold and the differentburners, the cock for said upper burner being operatively aligned withsaid top-gas burner cocks.

In testimony whereof, I have hereunto set my hand at Oakland,California, this 12th day of July, 1926.

FREDERICK A. GERCICH.

